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首页> 外文期刊>Radiation Protection Dosimetry >A Study On The Radiation Dose Of The Orthopaedic Surgeon And Staff From A Mini C-arm Fluoroscopy Unit
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A Study On The Radiation Dose Of The Orthopaedic Surgeon And Staff From A Mini C-arm Fluoroscopy Unit

机译：微型C型臂透视仪对骨科外科医生及放射人员辐射剂量的研究

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摘要

In this study, radiation exposure to the surgeon and supporting staff from a mini C-arm unit during fluoroscopically guided orthopaedic surgeries was studied. A Diadose dosemeter and Gamma-Scout meter were used for air-kerma measurements for primary and scattered radiations. The entrance dose of hands, eyes and thyroid of the surgeon was measured during direct observation. Scattered air-kerma rate was measured to quantify the received entrance dose of the supporting staff. During direct observation, the skin-entrance exposure rates of the surgeon's hand, eye and thyroid gland were 8036, 0.85 and 0.9 μGy min~(-1), respectively. The scattered exposure rate was precipitously dropped beyond the path of the primary radiation beam, and reached 0.51 μGy min~(-1) at a distance of 40 cm from the beam's central axis. This study showed that the surgeon's hand was the most dose-limiting organ for fluoroscopically guided orthopaedic surgery procedures when it was exposed to primary radiation. The exposure of supporting staff at arnworking distance of > 20 cm from the beam was minimal during fluoroscopay by mini C-arm unit.
机译：在这项研究中，研究了在透视检查引导下的骨科手术中，小型C型臂单元对外科医师和辅助人员的辐射暴露。 Diadose剂量仪和Gamma-Scout仪用于对原始辐射和散射辐射进行空气比释动能测量。在直接观察期间测量外科医生的手，眼和甲状腺的进入剂量。测量散射的空气比释动能比率，以量化支持人员的入场剂量。在直接观察期间，外科医生的手，眼和甲状腺的皮肤入口暴露率分别为8036、0.85和0.9μGymin〜（-1）。散射曝光率急剧下降到一次辐射束的路径之外，并且在距束中心轴40 cm处达到0.51μGymin〜（-1）。这项研究表明，外科医生的手在受到初次放射线照射时，是进行透视检查的骨科手术最大的剂量限制器官。在使用微型C型臂装置进行荧光检查时，支持人员在距光束的作业距离> 20 cm处的曝光最小。

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